This is precisely why we need Separation of School and State.
For years, we called for Separation of School & State here on this forum. The public school parents and teachers here took offense. And, still today, parents continue to place their children in these schools.
Parents need to understand that speaking out at school board meetings means nothing. They might win a battle here and there, but they are handing their children over to the enemy day after day. As long as they continue to deliver their children to the school, they are endorsing whatever the school teaches. The school boards, administrators, and teachers know the parents aren’t going anywhere.
And, if parents are willing to accept whatever the public school teaches their young children, the colleges surely are free to teach whatever they want to students of age. So, everyone (public schooled, private schooled, or homeschooled) gets stuck with the brainwashing in college.